Skip to main content

2021 GMC Sierra 1500 SLT specs & colors

MSRP
2WD Reg Cab 140"
$30,100
2WD Double Cab 147"
$34,000
4WD Reg Cab 140"
$34,700
2WD Crew Cab 147"
$36,400
4WD Double Cab 147"
$37,300
4WD Crew Cab 147"
$39,700
4WD Crew Cab 157"
$40,000
2WD Double Cab 147" SLE
$41,400
2WD Double Cab 147" Elevation
$43,100
2WD Crew Cab 147" SLE
$43,800
4WD Double Cab 147" Elevation w/3VL
$44,600
4WD Double Cab 147" SLE
$44,700
2WD Crew Cab 147" Elevation
$45,700
4WD Double Cab 147" Elevation w/3SB
$46,400
4WD Crew Cab 147" SLE
$47,100
4WD Crew Cab 147" Elevation w/3VL
$47,200
4WD Crew Cab 157" SLE
$47,400
2WD Crew Cab 147" SLT
$47,500
4WD Crew Cab 147" Elevation w/3SB
$49,000
4WD Crew Cab 157" Elevation
$49,300
4WD Crew Cab 147" SLT
$50,800
4WD Crew Cab 157" SLT
$51,100
4WD Crew Cab 147" AT4
$54,700
2WD Crew Cab 147" Denali
$55,800
4WD Crew Cab 157" AT4
$55,900
4WD Crew Cab 147" Denali
$59,300
4WD Crew Cab 157" Denali
$59,600
$50,800
Starting MSRP
Current listing price
2021 GMC Sierra 1500 SLT

Showing the 2021 GMC Sierra 1500 4WD Crew Cab 147" SLT

Shop Now

Key specs

  • 4-door
  • 5 seats
  • 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
  • 18 combined MPG
  • 231.72" length, 75.6" height
  • Four Wheel Drive

Color options

Exterior

Oxford Brown Metallic

Interior
Ebony
Gideon / Very Dark Atmosphere

Packages

  • LPO, Cargo Convenience Package

    $515

    Starting MSRP

    • includes (S1O) LPO
    • console-mounted safe and (VBJ) rear under seat storage
    • LPO
    See more detail
    • includes (S1O) LPO
    • console-mounted safe and (VBJ) rear under seat storage
    • LPO
    • (dealer-installed)
  • SLT Premium Package

    $3,545

    Starting MSRP

    • includes (PCY) SLT Convenience Package and (NZM) 20" Polished aluminum wheels
    • (BVT) Chrome assist steps.
  • Texas Edition SLT Premium Package

    $3,545

    Starting MSRP

    • includes (PCY) SLT Convenience Package
    • (NZM) 20" Polished aluminum wheels
    • (BVT) Chrome assist steps and Texas Edition badging.
  • SLT Premium Plus Package

    $7,345

    Starting MSRP

    • includes (PCY) SLT Convenience Package
    • (PDY) SLT Preferred Package
    • (PQB) Driver Alert Package I
    See more detail
    • includes (PCY) SLT Convenience Package
    • (PDY) SLT Preferred Package
    • (PQB) Driver Alert Package I
    • (PDJ) Driver Alert Package II
    • (NZM) 20" Polished aluminum wheels
    • (BVT) Chrome assist steps and (CGN) spray-on bedliner.With 4WD model and (L84) 5.3L EcoTec3 V8 engine (MQB) 10-speed automatic transmission is included.
  • Max Trailering Package

    $850

    Starting MSRP

    • includes 9.76" rear axle
    • (GU6) 3.42 axle ratio
    • enhanced cooling radiator
    See more detail
    • includes 9.76" rear axle
    • (GU6) 3.42 axle ratio
    • enhanced cooling radiator
    • revised shock tuning for increased control
    • heavier duty rear springs
    • increased RGAWR and (KW5) 220-amp alternator
  • Driver Alert Package II

    $1,095

    Starting MSRP

    • includes (UEU) Forward Collision Alert
    • (UHX) Lane Keep Assist/Lane Departure Warning
    • (UHY) Automatic Emergency Braking
    See more detail
    • includes (UEU) Forward Collision Alert
    • (UHX) Lane Keep Assist/Lane Departure Warning
    • (UHY) Automatic Emergency Braking
    • (UKJ) Front Pedestrian Braking
    • (TQ5) IntelliBeam
    • (KSG) Adaptive Cruise Control and (UE4) Following Distance IndicatorIncludes (HS1) Safety Alert Seat.
  • X31 Off-Road and Protection Package

    $3,005

    Starting MSRP

    • includes (X31) Off-Road Package
    • (CGN) spray-on bedliner and (RIA) All-weather floor liners
    • LPOIncludes (NZM) 20" Polished aluminum wheels and (QAE) 275/60R20 all-terrain
    See more detail
    • includes (X31) Off-Road Package
    • (CGN) spray-on bedliner and (RIA) All-weather floor liners
    • LPOIncludes (NZM) 20" Polished aluminum wheels and (QAE) 275/60R20 all-terrain
    • blackwall tires.
  • X31 Off-Road Package

    $850

    Starting MSRP

    • includes Off-Road suspension
    • (JHD) Hill Descent Control
    • (NZZ) skid plates
    See more detail
    • includes Off-Road suspension
    • (JHD) Hill Descent Control
    • (NZZ) skid plates
    • (K47) heavy-duty air filter and X31 hard badgeIncludes (NQH) 2-speed transfer case
    • (XCK) 265/65R18SL all-terrain
    • blackwall tires and (N10) dual exhaust.
  • Technology Package

    $2,075

    Starting MSRP

    • includes (UVS) HD Surround Vision
    • (DRZ) Rear Camera Mirror
    • (UVN) Bed View Camera and (UV6) Multicolor 15" Diagonal Head-Up DisplayIncludes (UHS) 8" Digital Driver information Center.)
  • LPO, GMC Protection Package

    $370

    Starting MSRP

    • includes (RIA) all-weather floor liner
    • LPO and (VQK) front and rear Black molded splash guards
    • LPO
    See more detail
    • includes (RIA) all-weather floor liner
    • LPO and (VQK) front and rear Black molded splash guards
    • LPO
    • (dealer-installed)
  • SLT Preferred Package

    $1,070

    Starting MSRP

    • includes (IOT) 8" diagonal Premium GMC Infotainment with navigation
    • (UQA) Bose Premium Audio System and (K4C) Wireless Charging
  • Texas Edition SLT Premium Plus Package

    $7,345

    Starting MSRP

    • includes (PCY) SLT Convenience Package
    • (PDY) SLT Preferred Package
    • (PQB) Driver Alert Package I
    See more detail
    • includes (PCY) SLT Convenience Package
    • (PDY) SLT Preferred Package
    • (PQB) Driver Alert Package I
    • (PDJ) Driver Alert Package II
    • (NZM) 20" Polished aluminum wheels
    • (CGN) spray-on bedliner
    • (BVT) Chrome assist steps and Texas Edition badging.With 4WD model and (L84) 5.3L EcoTec3 V8 engine (MQB) 10-speed automatic transmission is included.
  • SLT Convenience Package

    $1,445

    Starting MSRP

    • includes (A50) bucket seats with (D07) center console
    • (KQV) ventilated front seats
    • (A48) rear sliding power window
    See more detail
    • includes (A50) bucket seats with (D07) center console
    • (KQV) ventilated front seats
    • (A48) rear sliding power window
    • (UG1) Universal Home Remote
    • (MCZ) 2 USB ports with auxiliary input (IP Mounted)
    • (MCR) 2 USB Ports/SD Card/Aux Jack (Inside Console with bucket seats) and (KA6) rear heated seats(KA6) Heated Second Row Outboard Seats are included on Crew Cab models built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats
    • which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.)
  • Snow Plow Prep Package

    $400

    Starting MSRP

    • includes roof emergency light provisions
    • (KW5) 220-amp alternator
    • (K47) heavy-duty air filter
    See more detail
    • includes roof emergency light provisions
    • (KW5) 220-amp alternator
    • (K47) heavy-duty air filter
    • (NZZ) skid plates and heavy-duty front springs.
  • SLT Preferred Equipment Group

    $0

    Starting MSRP

    • includes standard equipment
  • Driver Alert Package I

    $890

    Starting MSRP

    • includes (UD5) Front and Rear Park Assist
    • (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert(Includes Perimeter Lighting. Includes (V76) recovery hooks on 2WD models.

Specifications

Highlights

Engine Type
Gas V8
MPG
15 City / 21 Hwy
Horsepower
277 hp
355 hp
420 hp
Seating Capacity
5

Brakes

Brake Type
Pwr
Brake ABS System
4-Wheel
Brake ABS System (Second Line)
N/A
Disc - Front (Yes or )
Yes
Disc - Rear (Yes or )
Yes
Front Brake Rotor Diam x Thickness
13.5 x 1.18 in
Rear Brake Rotor Diam x Thickness
13.6 x 0.79 in
Drum - Rear (Yes or )
N/A

Electrical

Cold Cranking Amps @ 0° F (Primary)
730
Maximum Alternator Capacity (amps)
170

Engine

Engine Type
Gas V8
Displacement
5.3L/325
SAE Net Horsepower @ RPM
355 @ 5600
SAE Net Torque @ RPM
383 @ 4100
Transmission Options
10-Speed A/T
8-Speed A/T
A/T
MPG
15 City / 21 Hwy
Total Cooling System Capacity
N/A

Entertainment

Bluetooth®
Optional
Bluetooth®
Standard

Measurements

Second Leg Room
43 in
Second Hip Room
60 in
Wheelbase
147 in
Length, Overall w/o rear bumper
N/A
Length, Overall w/rear bumper
N/A
Length, Overall
232 in
Width, Max w/o mirrors
81 in
Height, Overall
76 in
Overhang, Front
N/A
Overhang, Rear w/o bumper
N/A
Cab to End of Frame
N/A
Ground to Top of Load Floor
N/A
Ground Clearance, Front
8 in
Ground Clearance, Rear
8 in
Cargo Box Length @ Floor
70 in
Cargo Box Width @ Top, Rear
N/A
Cargo Box Width @ Floor
71 in
Cargo Box Width @ Wheelhousings
51 in
Cargo Box (Area) Height
22 in
Tailgate Width
N/A
Cargo Volume
63 ft³
Ext'd Cab Cargo Volume
N/A
Passenger Capacity
6
Front Head Room
43 in
Front Leg Room
45 in
Front Shoulder Room
66 in
Front Hip Room
61 in
Second Head Room
40 in
Second Shoulder Room
65 in

Safety

Stability Control
Standard
Backup Camera
Optional

Steering

Steering Type
Electric Rack & Pinion
Steering Ratio (:1), Overall
N/A
Turning Diameter - Curb to Curb
47 ft
Turning Diameter - Wall to Wall
N/A

Suspension

Suspension Type - Front
Independent
Suspension Type - Rear
Solid Axle
Axle Type - Front
N/A
Axle Type - Rear
N/A

Tires & Wheels

Front Tire Size
265/65R18SL
Rear Tire Size
265/65R18SL
Spare Tire Size
265/70R17SL
Front Wheel Size
18 x 8.5 in
Rear Wheel Size
18 x 8.5 in
Spare Wheel Size
17 x -TBD- in
Front Wheel Material
Aluminum
Rear Wheel Material
Aluminum
Spare Wheel Material
Steel

Weight & Capacity

Gross Axle Weight Rating
7,600 lbs
Curb Weight
4,815 lbs
Total Option Weight
0 lbs
Gross Vehicle Weight Rating
7,100 lbs
Base Curb Weight
N/A
Curb Weight - Front
2,839 lbs
Curb Weight - Rear
1,976 lbs
Option Weight - Front
0 lbs
Option Weight - Rear
0 lbs
As Spec'd Curb Weight
4,969 lbs
As Spec'd Payload
2,131 lbs
Maximum Payload Capacity
2,285 lbs
Gross Combined Wt Rating
15,000 lbs
Dead Weight Hitch - Max Trailer Wt.
5,000 lbs
Dead Weight Hitch - Max Tongue Wt.
500 lbs
Wt Distributing Hitch - Max Trailer Wt.
9,200 lbs
Wt Distributing Hitch - Max Tongue Wt.
920 lbs
Fifth Wheel Hitch - Max Trailer Wt.
7,800 lbs
Fifth Wheel Hitch - Max Tongue Wt.
1,950 lbs
Maximum Trailering Capacity
11,700 lbs
Fuel Tank Capacity, Approx
24 gal
Aux Fuel Tank Capacity, Approx
N/A

Compare trims

2021 GMC Sierra 1500 SLT

Wondering which trim is right for you?